9 things you may have missed: Day 4 of the Zimmerman trial

You probably aren't able to watch all 8+ hours of the George Zimmerman murder trial each day, so we'll catch you up on the important things. Click through to see what happened on Day 4.

1. Rachel Jeantel changes her behavior during testimony

Trayvon Martin's friend Rachel Jeantel was at times a somewhat hostile witness Wednesday, but that changed for the most part Thursday. Jeantel answered most of defense attorney Don West's questions with "yes, sir," and "no, sir." But there were moments when she showed frustration, such as when West suggested that Martin planned to assault Zimmerman but didn't want to tell her about it. "That's really retarded, sir," she said.

PHOTO: Orlando Sentinel/Pool photo

2. Did Jeantel hear Martin say "get off"?

Trayvon Martin's friend, Rachel Jeantel, who was on the phone with him moments before he died, said in court that she heard Martin say "get off, get off," during his struggle with George Zimmerman. But she did not say that in a previous interview. Jeantel said that's because she wasn't asked about it in that previous interview.

PHOTO: Orlando Sentinel/Pool photo

3. Jeantel says she cleaned up her language for Martin's mom

During a previous interview, Jeantel said she gave a cleaned up version of what Martin told her on the phone because Martin's mother, Sybrina Fulton, was present during the interview, and she didn't want to hurt her feelings.

PHOTO: Orlando Sentinel/Pool photo

4. What does wet grass sound like?

Rachel Jeantel says she heard the confrontation between Martin and Zimmerman, then heard a "bump" noise, then heard what sounded like wet grass. Defense attorney Don West questioned her on how she knows what wet grass sounds like. "It could have been a thousand other things," West said. "Yes, sir," she responded.

5. Witness: Man on top was wearing red and black pattern

A witness said she saw a person wearing black and red clothes on top of another person. Zimmerman was wearing a black and red jacket that night.

PHOTO: Orlando Sentinel/Pool photo

6. O'Mara asks witness for reenactment

Selma Mora, a Spanish-speaking witness, was asked by defense attorney Mark O'Mara to demonstrate how she moved from her kitchen to her porch after hearing a commotion outside. Mora took off her heels and made the courtroom into her home.

PHOTO: Orlando Sentinel/Pool photo

7. 911 call with "screaming" in the background played in court

The much-disputed 911 call with "screaming" heard in the background was played in court. The caller, Jenna Lauer, testified about what she heard outside her home.

PHOTO: Orlando Sentinel/Pool photo

8. Who's following who? Twitter confusion

State attorney Bernie de la Rionda has admitted before that he is a social media novice, but it appears he got this one right. Witness Jenna Lauer was asked if she was "following" George Zimmerman's brother, Robert Zimmerman, Jr., on Twitter. She said she wasn't. De la Rionda got out a laptop and showed her that she was. It sparked a confusing few minutes on what "following" is and who was "following" whom.

PHOTO: Orlando Sentinel/Pool photo

9. Questions about Zimmerman's background

Without the jury present, Bernie de la Rionda brought up Zimmerman's previous criminal history. He mentioned a restraining order placed on Zimmerman and a charge of battery on a law enforcement officer. It has not been decided if this will be allowed as evidence in the trial.

You probably aren't able to watch all 8+ hours of the George Zimmerman murder trial each day, so we'll catch you up on the important things. Click through to see what happened on Day 4.

1. Rachel Jeantel changes her behavior during testimony

Trayvon Martin's friend Rachel Jeantel was at times a somewhat hostile witness Wednesday, but that changed for the most part Thursday. Jeantel answered most of defense attorney Don West's questions with "yes, sir," and "no, sir." But there were moments when she showed frustration, such as when West suggested that Martin planned to assault Zimmerman but didn't want to tell her about it. "That's really retarded, sir," she said.

PHOTO: Orlando Sentinel/Pool photo

2. Did Jeantel hear Martin say "get off"?

Trayvon Martin's friend, Rachel Jeantel, who was on the phone with him moments before he died, said in court that she heard Martin say "get off, get off," during his struggle with George Zimmerman. But she did not say that in a previous interview. Jeantel said that's because she wasn't asked about it in that previous interview.

PHOTO: Orlando Sentinel/Pool photo

3. Jeantel says she cleaned up her language for Martin's mom

During a previous interview, Jeantel said she gave a cleaned up version of what Martin told her on the phone because Martin's mother, Sybrina Fulton, was present during the interview, and she didn't want to hurt her feelings.

PHOTO: Orlando Sentinel/Pool photo

4. What does wet grass sound like?

Rachel Jeantel says she heard the confrontation between Martin and Zimmerman, then heard a "bump" noise, then heard what sounded like wet grass. Defense attorney Don West questioned her on how she knows what wet grass sounds like. "It could have been a thousand other things," West said. "Yes, sir," she responded.

5. Witness: Man on top was wearing red and black pattern

A witness said she saw a person wearing black and red clothes on top of another person. Zimmerman was wearing a black and red jacket that night.

PHOTO: Orlando Sentinel/Pool photo

6. O'Mara asks witness for reenactment

Selma Mora, a Spanish-speaking witness, was asked by defense attorney Mark O'Mara to demonstrate how she moved from her kitchen to her porch after hearing a commotion outside. Mora took off her heels and made the courtroom into her home.

PHOTO: Orlando Sentinel/Pool photo

7. 911 call with "screaming" in the background played in court

The much-disputed 911 call with "screaming" heard in the background was played in court. The caller, Jenna Lauer, testified about what she heard outside her home.

PHOTO: Orlando Sentinel/Pool photo

8. Who's following who? Twitter confusion

State attorney Bernie de la Rionda has admitted before that he is a social media novice, but it appears he got this one right. Witness Jenna Lauer was asked if she was "following" George Zimmerman's brother, Robert Zimmerman, Jr., on Twitter. She said she wasn't. De la Rionda got out a laptop and showed her that she was. It sparked a confusing few minutes on what "following" is and who was "following" whom.

PHOTO: Orlando Sentinel/Pool photo

9. Questions about Zimmerman's background

Without the jury present, Bernie de la Rionda brought up Zimmerman's previous criminal history. He mentioned a restraining order placed on Zimmerman and a charge of battery on a law enforcement officer. It has not been decided if this will be allowed as evidence in the trial.